As an example you have one plan plot window but you are required to produce say 2 or 3 of the same plan plot and each drawing is individualized by different layers that are "ON" - for example - one with storm water, the second with another layer and storm water is "off". Therefore in this instance you cannot produce a range of different plan plots that will be contained in one drawing and showing different layers on and off.
Also what would be good is in the Drawing View Manager, have a "Preview" button to preview a selected drawing. Plus the ability to collate the individual drawings.